Feed u



F. R. AKERLEY.

NAILING DIE.

APPLICATION FILED 1AN.28. |918.

1,322,509 Patented Nov. 25,1919.

FRED R. AKERLEY, or rEvERLivriiSsAeH-OSETTS, AssieivoR To UNITED SHOEMAOHINERYOORPORAMON, or PATERSON, NEW JERSEY, A CORPORATION or vN'EwJERSEY.

VBe it known that I, FRED R., AKERLEY, a citizen of thek United States,residing at Beverly, in the county of Essexd and State of Massachusetts,have invented certain Improvements in Nailing-Dies, of which thefollowing description, in connection with the specification,

accompanying drawings, is a the drawings like reference characters on`indicating like parts inthe several figures.

This invention relates to nailing diesy and particularly to the form ofdie used in power nailing machines in which the nails are deposited inholes-in the .are driven by. power actuated nail drivers.

Nailing dies of this character are always used in machines for attachingheels to shoes,

' and kdifficulty has at times been experienced driver. .loecome sotightly jammed in the driver pasdrillthem out. Aers andthe nailingoperation,

wfrom the driver passages becoming` clogged .by reason Vof theinadvertent int 1oduction into a vdie of two loads of nails, or of the jamming in a driver passage, of a nail and a splinter, or imperfect nail,Vor a broken These materials not infrequently `sage that it isimpossible -to remove them with a punch, and itis then necessarytoinasmuch as `both the drivdie are hardened, it is usually impossible toperformthis drilling yuntil after they have been annealed. The commonpractice under such circumstances is to send the die to the manufacturerof the machine to be annealed, drilled out, rehardenechand returned.rhis, of course, involves expense and, what `is ymore important, vtheloss of the use of the die for a substantial kperiod kof time. Thiscondition is likely to occur at atime when the -use of the particulardie is very necessaryVand great annoyance and considerable loss oftenresult.

"Theobject of the present invention to v provide a nailing .die whichwill not differ in appearance nor function from vthe standard diesalreadyin use, ybutwhich willbe constructed -to permitv the machineoperator easilyV and V,quickly to remedy the condition -above outlined`without any 4,material expense or loss of time.

Y With this Object 4.in ,viewb :an important Yfeature 1 of the invention,consists :in the yprovision, ina nailing die -of Ya nail rand. fdriverY guiding-member or bushing,

n I Vof suiicient leng h to insurethat anyyammmg or clogdie from whichthey NAILINGDIE.

Speccaton of Letters Patent. Patented NOV, 25, 1919, Applicatin fliedJanuary 2s, i918. serial' No. 214,173. i

ging that Amay occur .will take 'place within the said member, containedin a suitable Vchamber in the dieA and tting loosely enough tok permitit to be easily yand quickly removed. `*The die is preferablyconstructed in two sections, into one of which the busliing o r guidingmember is insertedrwhile the other acts as a retainer to preventdisplace*- ment of said member. lnthe embodiment of the inventionillustrated, -in the `accompan'ying ldrawings and hereinafterspecifically described, one section of the die is vmade thick andprovided with ,a chamber extending nearly through .it and with a coaxialsmaller hole extending the remainder of the way through, and having adiameter the same as that of the usual nail and driver conduit. Thesecond section of the" die is relatively thin but is otherwisevconstructed similarly to the thick section. When these l7 5 dieSections are secured together with the holes in alinement, a chamberextending nearly -through'the die is formed.V A cylindrical, tubularbushing lits .loosely lin this chamber and its. central hole is of thesame `diameter as, and in alinement with, the holes in the oppositefaces'of the die, so that when y the device isassembled, there is acontinuous Y with thepresent invention has valuable advantages overthose heretofore used. l ln the event of .one ofpthe nail passagesbecoming clogged by the Jamming ofnails or drivers,

the machine operator canver'y quickly remove the bushing retainingsection'of the die, pick out the tube which is clogged, re-

place it with a new tube,` replace the retainer, and resume work withthe machine. The device is'very simple Vinlconstruction and inexpensiveto Vmanufacture Aand contains Vno complicated mechanism nor parts whichmightget out ofl order, or interfere lOO with its ordinary, normal use.vThe nail and driver guiding tube or bushing is a simple, one-piecedevice which can be manufactured in quantities Vand very cheaply. iConsequently, the expense of replacing a. clogged l bushing is soinsignificant that it may be i almost disregarded, while the gain v'inconvenience and saving of loss in being able ,to continue the use of themachine without interruption is a matter ofgreatimportance.Y

Thedrawing is a perspective view partly in section, illustrating anailing die eiii'bodying my invention.

Referring now to the drawing, indi-` cates a thick die section of thesame contour as the nailing die commonly used. A thin- .ner section 12of the saine size and shape as.

the section 10V is located in register with the latterandsecuredthereto'by any suitable,

easily vdetachable mea-iis, such, for example, Aas screws 14. rllheusual nail and driver guiding holes 16 aredrilled in thedie seci tion10, vemerging from the outer face 18 hardened steel, and inasmuch as itis easier i thereof. The holes 16 are enlarged in the ninterior-of thedie, forming chambers 20 of larger diameter than, but co-axial with, the

` holes at the surface 18. Similar holes 22 of Vthe same sizeas, and inalinement with, the

holes 16 are drilled inthe thinner die secface of the die, and thesechambers are connected to the faces of the die by the alined holes 16,22.

In each ofthe chambers is placed a onepiece, rigid, tubular nail anddriver guiding member or bushing 26 which lits suiiiciently looselyinthe chamber to permit it to be easily removed with thefingers, but,

closely enough to cause it to be retained immovably in position when thetwo sections of the die are secured together. The-guiding member orbushing 26'has through it an Vaxial hole 28 of the'same diameter as, and

Iin alinement with, the holes 16 and 22.

When the device is assembled as vshown it 7 3 presents the usualpseriesof nail and driver 'guiding' holes or conduits of uniform sizethroughout and in actual use cannot be distinguished from `the ordinarynailing die. The bushings 26 are preferably made of to harden 'a smallpart of this character than, a thick, heavy piece of steel, such as acomplete die, adevice made according to my invention may be evenstronger and more durablethan the ordinary-hardened die.V The die'sections 10, 12 may be hardefied or not, as desired, but ordinarily,they `would be at least case-hardened to prevent them from being bruisediiihandling.

In the drawing, two of the guiding menibers 26 are shown, one being insection, with nails 30 andthe upper ends of drivers 32 Vin them. Thisrepresents the relation of the parts when the die is used in a machinein which thenails are driven upwardly.

` The improved die, however, is equally applicable toa machine in whichthe nails are chamber. 5. A nailing die containing aV rigid, one'Ypiece,.nail Vand driver guiding member'ex-v tending through the'greater part of `the' *E driven Vdownwardly by 'driversv desc-endingfrom above, and one practical advantage of the construction illustrated?is. that tlie driveraiid nail guiding-tubes areretained immovably inposition so that it is impossible for them to become displaced, howeverthe'die may be handledY or whatever;its

position in the machine. This "secure'ret'ention of the tubes-is .alsoof great importance n the event of ldrivers or nails becoming jammed,whereupon great force is likely to'b'f-.vexerted upon the bushing,tendingto move it' lengthwise.

It will be perceived that the improved l hailing die of my'invention,while it is very simple in construction and' inexpensive to Ymanufacture,' offers great practical vadvantages in use over the nailingdies heretofore known, and these are not oisetby any disadvantagesresulting from the new construction.v

Having described my invention, what' l Y claim as new and desire tosecure by liet-y ters Patent of the United States is l. A nailing diecomprising two layers"` lsecured together iii contact with eachother andhaving alined holes 'inf opposite faces Vof the die, said holes beingenlarged in the interiorof the die to form a chamber, and

a bushing tting loosely in l the chamber andl having a hole in alinementwith those in the faces of the die.

2. A nailing die comprising Va Ythicksec- Y tion hav-ing a large holeextending nearly through it and a o o-axial smaller hole'ex- "tendingthe remainder of the'way through Ithev section, a removable bushingfitting loosely in the large hole andhavingan axial hole in alinementwith said smallerfhole, Y and arelatively thin diesection removably.'

secured to the thick section and acting lto retain the bushing in place.

3. A nailing die having alined movable bushing member inV said chamber,said bushing being provided with aV nail hole in alinement with those inthe? faces of the die and the parts rbeing so `proportioned that, whenthe bushing is iii place.)v

there is a continuous hole ofuniform diameter through thedie. Y

4:. A nailing diefhaving lioles 'of equal diameters in itsfoppositefaces and an en-i larged chamber connecting said holes, and a tubularbushing fitting vremovablyin said ing in permanent' valinement with-thefrst mentioned holes when thebushing i'sin the thickness Aof .thedie, and provided with means for lnormally retaining said member nailholes in its opposite faces and an enlarged chain- Y ber connecting saidholes, and an easily reiio ' chamber, the hole through'said bushing bei'in place in the die, said retaining means being readily detachable, topermit easy removal of the nail guiding member in the event of itbecoming clogged With nails or a broken driver.

6. A nailing die comprising a plurality of sections, means for separablysecuring said Sections together, and a rigid, tubular, nail and driverguiding member contained in the die, said member terminating adja- 10 Intestimony whereof I have signed my 15 name to this speoiicaftion.

FRED R. AKERI'JEY.

